Propeller Owner's Manual
115N
INSTALLATION AND REMOVAL
61-00-15
Page 3-76
Rev. 24 Dec/20
12. Composite Bulkhead Spacing Adjustments
(Rev. 1)
A. To Move the Bulkhead Toward the Cowling
CAUTION 1: THE STACK-UP SEQUENCE FOR
EACH HUB CLAMPING BOLT MUST BE
THE SAME. VARIANCES BETWEEN
STACK-UPS CAN CAUSE CRACKING OF
THE SPINNER BULKHEAD. EXCEPTIONS
MAY BE REQUIRED IF PROPELLER
APPLICATIONS HAVE DE-ICE OR ANTI-
ICE APPLICATIONS. REFER TO HARTZELL
PROPELLER INC. ICE PROTECTION
SYSTEM MANUAL 180 (30-61-80) FOR
INSTALLATION INSTRUCTIONS.
CAUTION 2: THE
COMBINED THICKNESS OF
ADDITIONAL WASHERS/SPACERS MUST
BE LESS THAN OR EQUAL TO 0.125 INCH
(3.17 MM). IF MORE ADJUSTMENT IS
NEEDED, CONTACT THE HARTZELL
PRODUCT SUPPORT DEPARTMENT.
Composite Bulkhead Toward the Cowling
Figure 3-23
TPI-MB-0458
Cowling
Bulkhead
Additional
Washer(s)/Spacer(s)
Hub
Spacer “A”
Thin Flat Washer “C”
Wave Washer “B”
